Patent CH329353A successfully refreshed from Google Patents.
CH329353A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Filters for tobacco smoke
Assignee: Rohrer Ernst Dipl Ing Dr Chem
•
Filing: 1954-05-18
•
Granted: —
•
Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Rohrer Ernst Dipl Ing Dr Chem
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-29 16:04
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.